Dishwashing machine



DISHWASHING MACHNE Filed Nov. 8., 1923 3 Sheets-Sheet 2 .13mm i928.1,656,139

J. L. BRE-mm DISHWASHING MACHINE Filed Nov. 8. 1923 3 Sheets-Shee'k Z5www@ Arme/VE V5 posesshall have raised the float and 4moved aside theobstructing rod. Upon reaching the proper levelpthe float releases asmall weight28 which drops upon a small hammer 28, and the latter willstrike against the handle 22 of the said emptying pipe so as to producean audible signal. This arrangement provides a mechanical water levelalarm which'is both simple and strong, and it requires no upkeep. Asmall opening 29 serves to hold a thermometer showing the temperature ofthe washing water.

The centrifugal pump 10 withdraws water from the heater and projects itupon the dishes in the rotating basket or holder through the aperturedtubes 30 whereof one is placed horizontally according to a radius of thebottom of the said holder and the other is placed in the verticalposition according to a generatrix of its cylindrical wall.

The motor, pump and blower group is placed upon a cast iron or aluminiumbase 32 of suitable shape which also forms one of' the three feet of theapparatus The motor 33, placed at the centre, drives on one side thecentrifugal pump and on the other the blower, by automatic clutches ofthe inertia type which act in turn according to the direction ofrotation whereby the pump and the blower can be successively operated bysimply throwing the motor switch. Figs. 4 and 5 show two different typesof these clutches, both giving excellent results. In Fig. 4, the movablemass is displaced upon a cfluick-motion screw and it is terminated byour saw teeth 33 co-operating with four like teeth on the actuatedshaft, but in order to dampen the sudden starting shock, the lattermember is supported by an elastic india rubber disc 35 secured by a flatring and various screws to a metal dise 35a which is keyedrto the shaftof the pump or blower. In the arrangement shown in Fig. 5, the sawtoothclutch' is replaced by a hollow .cone 36 co-operating with the leathercone 37 the pressure required for a good coupling can be regulated bythe spiral spring 38.

The centrifugal blower 39 withdraws the air through a conduit 40 openinginto the cylindrical wall of the receptacle containing the said dishholder or basket. The said conduit 40 is divided up by a set of verticalwings made of light sheet metal, so as to avoid splashing ot the washwater into the blower.

The air ente-rs the apparatus through an inclined conduit 41 disposed inthe cylindrical wall of the vessel and also provided with vertical wingschiefly intended to direct the flow of air upon the dishes in order todry them while at the same time effecting the rotation of thebasket. Theopening is closed by a hinged door 42 during the washing, in ordertoprevent splashing of water.

The said dish holding basket has a central tube upon whose upper part isdisposed the pivot 5 resting upon the central rod 3.

To the central tube 50 are soldered or welded four members 5l eachconsisting of a. single piece of T-iron bent at right angles with theflange inward; two angle-iron hoops 52 are soldered or Welded to theexterior of the said members at the top and bottom; a cylinder 53 and adisc 54 formed of a large-meshed netting are mounted in the interior inorder to constitute the bottom and the lateral wall of the basket orholder.

To the said netting are secured corrugated iron rings 43 whose loopshave the same inclination as the edges of the plates.

The said arrangement, while securing thc plates in a perfect manner,enables the maX- imum number to be placed in a holder of a given size,for instance in a holder having c/m. diameter, and it also allows of disposing (without any modification) plates or all kinds of dishes at willin any of the sections of the basket.

In order to control the accessory' a paratus which may be disposed upontlie table formed by the cover of the machine, one of the automaticclutches may comprise, instead of a grooved pulley, a tapered disc 44,Fig. 5, (fo-operating by friction with a like disc 45 which is key-ed tothe end ot a vertical shaft 46 controlling (by a worm) a worm 54 wheel55 disposed in a closed casing secured to the cover, Fig. 6. The properadhesion of the two conical discs is ensured by the pressure exercisedby the worm of the automatic clutch.

In order to disengage this additional control, it is simply necessary toraise the vertical rod with its tapered roller by means of the knob withbayonet joint 47, Fig. 6. This arrangement, which eliminates the belt,has the advantage of controlling the automatic coupling of the blower bythe simple operation of the descent of the vertical shaft, causing atthe same time the rictioual contact of the two tapered rollers, so thatthe motor may control, by changing the direction of its rotation, thecentrifugal pump or the blower.

The heating device for said apparatus is chiefly intended for use inkitchens having hot water piping; in this case, when the washing iscompleted, it is simply necessary to pour a fresh quantity ot hot waterinto the apparatus, and the dishes can thus be rinsed at once. But whencold water alone is available, it is necessary to wait until this waterplaced in the heater is heated to the proper temperature by the burner,and this will require a certain time.

I claim In a. dish washing machine, the combination of a washing vat, adish holding basket rotatable in this vat, and adapted to rotate in ahorizontal plane, means in said basket for between the said air pump andthe said holding the dishes in nearly radial positions, Water pump andmeans for alternately couan air pump adapted to draw the air out ofpling the said engine with the said Water l the said Vat, an ail' inletnozzle in the Wai] pump and with the said air pump.

of said Vat and directed towards the said In testimony that I claim theforegoing as dishes, a Water pump adapted to inject Washmy invention, Ihave Signed my name.

ing water in the said Vat, an engine placed JULES LOUIS BRETON.

